Home / 12,807.45-19,210.50-4,913.75

Finding the Fourth Proportional to 12,807.45, 19,210.50 and 4,913.75

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Solution

The fourth proportional to 12,807.45, 19,210.50 and 4,913.75 is: 7,370.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,807.45 : 19,210.50 = 4,913.75 : x
  2. Step 2: Convert to fraction form
    12,807.45/19,210.50 = 4,913.75/x
  3. Step 3: Cross multiply
    12,807.45x = 19,210.50 × 4,913.75
  4. Step 4: Simplify right side
    12,807.45x = 94,395,594.38
  5. Step 5: Solve for x
    x = 94,395,594.38/12,807.45
  6. Step 6: Final answer
    x = 7,370.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.